25604843 has 4 divisors (see below), whose sum is σ = 27932568. Its totient is φ = 23277120.

The previous prime is 25604833. The next prime is 25604849. The reversal of 25604843 is 34840652.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25604843 - 2⁴ = 25604827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25604849) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1163846 + ... + 1163867.

It is an arithmetic number, because the mean of its divisors is an integer number (6983142).

Almost surely, 2^25604843 is an apocalyptic number.

25604843 is a deficient number, since it is larger than the sum of its proper divisors (2327725).

25604843 is a wasteful number, since it uses less digits than its factorization.

25604843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2327724.

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 25604843 is about 5060.1228245963. The cubic root of 25604843 is about 294.7411038908.

The spelling of 25604843 in words is "twenty-five million, six hundred four thousand, eight hundred forty-three".